Stadium: Court 1 Round: 44 Ground: Clay
| ITF M25 - Marburg | 2021/07/07 09:00 | Maik Steiner v Arnaud Bovy | 6-3,6-7,6-7 |
| ITF M25 - Marburg | 2021/07/06 12:30 | Christoph Negritu v Maik Steiner | 7-6,5-7,8-10 |
| ITF M25 - Marburg | 2021/07/05 10:05 | Lawrence Bataljin v Maik Steiner | 4-6,3-6 |
| ITF M25 - Bourg-en-Bresse | 2021/06/30 07:00 | Maik Steiner v Clement Tabur | 4-6,2-6 |
| ITF M25 - Bourg-en-Bresse | 2021/06/28 09:00 | Yann Marti v Maik Steiner | 6-3,2-6,9-11 |
| ITF M25 - Bourg-en-Bresse | 2021/06/27 09:40 | Theo Arribage v Maik Steiner | 2-6,6-2,8-10 |
| ITF M25 - Klosters | 2021/06/20 07:00 | Gian Luca Tanner v Maik Steiner | 6-4,6-2 |
| ITF M15 - Antalya | 2021/06/02 11:30 | Maik Steiner v Giacomo Dambrosi | 3-6,3-6 |
| ITF M15 - Oldenzaal | 2021/08/15 08:30 | Caspar Schuetze v Max Van Nunen | 6-2,4-6,10-8 |
| ITF M25 - Haag | 2021/06/28 09:40 | Guy Den Heijer v Max Van Nunen | 6-3,6-1 |
| ITF M25 - Haag | 2021/06/27 08:00 | Max Van Nunen v Jack Gibbens | 6-2,3-6,16-14 |
| ITF M15 - Alkmaar | 2020/08/23 08:00 | Max Van Nunen v Simon Beaupain | 5-7,5-7 |
| ITF M15 - Koksijde | 2019/08/13 10:40 | Lautaro Agustin Falabella v Max Van Nunen | 6-3,6-0 |
| ITF M15 - Koksijde | 2019/08/12 14:40 | Max Van Nunen v Ivan Denisov | 3-6,7-5,12-10 |
| ITF Belgium F12 Qual | 2017/09/02 11:00 | Boris Beumer v Max Van Nunen | 6-4,4-6,6-1 |
| ITF Netherlands F2 Qual | 2017/06/24 09:00 | Nick Broekhof v Max Van Nunen | 6-1,6-4 |